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AssigneePetro-Chem Development Co., Inc.
InventorsWilliam C. Gibson, James T. Eischen
Estimating the term…
An adjustable louver system for controlling the direct thermal radiation reaching fluid tubes in a direct-fired heater. An angular position of louver blades of the louver system is adjusted by rotating first and second axles attached to the louver blades. The louver blades may be positioned manually or by an electric or pneumatic motor. A hand crank or knob located outside the heater manually turns the louver blades. The motor, which is also located outside the heater, is controllable by a temperature actuator. In some embodiments, the louver blades have pivot pins which fit into slots of a connecting plate. Rotation of one of the louver blade causes the connecting plate to rotate all of the louver blades simultaneously. In some embodiments, the louver blades are vertically positioned and the louver axles fit into holes in upper and lower guide plates. In other embodiments, the louvers are horizontally disposed and the louver axles fit into openings in the heater walls.
In a direct-fired heater with a flame and combustion products emitting radiation and fluid tubes, a radiant heat obstruction device positioned between the flame and the fluid tubes, comprising:
In a direct-fired heater with walls and a floor, with a flame and combustion products emitting radiation, and with fluid tubes, an adjustable louver system for controlling a temperature of fluid film in the fluid tubes, comprising:
A louver system for blocking radiative heat transfer from a flame and combustion products to a fluid tube in a direct-fired heater having a first wall and a second wall, the first and second walls being parallel and having aligned openings, comprising:
A method for adjustably controlling direct thermal radiation from a flame and combustion products to fluid tubes in a direct-fired heater, comprising:
Dependencies are inferred from the claim text.